<template>
  <transition name="slide">
 <music-list :title="title" :bg-image="bgImage" :songs="songs"></music-list>
  </transition>
</template>

<script type="text/ecmascript-6">
import { mapGetters } from "vuex"
import { getSingerDetail } from "api/singer"
import { ERR_OK } from "api/config"
import {createSong} from 'common/js/song'
import MusicList from 'components/music-list/music-list'

export default {
   data() {
      return {
        songs: []
      }
    },
  computed: {
     title() {
        return this.singer.name
      },
      bgImage() {
        return this.singer.avatar
      },
   ...mapGetters([
        'singer'
      ])
  },
  created() {
    this._getDetail()
  },
  methods: {
    _getDetail() {
       if (!this.singer.id) {
          this.$router.push('/singer')
          return
        }
      getSingerDetail(this.singer.id).then(res => {
        if (res.code === ERR_OK) {
          this.songs = this._normalizeSongs(res.data.list)
        }
      })
    },
     _normalizeSongs(list) {
        let ret = []
        list.forEach((item) => {
          let {musicData} = item
          if (musicData.songid && musicData.albummid) {
            ret.push(createSong(musicData))
          }
        })
        return ret
      }
  },
   components: {
      MusicList
    }
}
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
@import '~common/stylus/variable';

  .slide-enter-active, .slide-leave-active {
    transition: all 0.3s
  }

.slide-enter, .slide-leave-to {
  transform: translate3d(100%, 0, 0)
}
</style>